DAEWOO ELECTRONICS ACP-0108 Series User manual

Service Manual
Car Audio
S/M No : ACP0108EF0
MODEL : ACP-0108 Series
DAEWOO ELECTRONICS CO., LTD
http://svc.dwe.co.kr Mar. 2001
4-Channel high Power (40W x 4Ch)
Electronic Tuning
Electronic Volume/Bass/Treble/Balance/Fader
Control
42 Memory Capability (18FM+12MW+12LW)
Local/DX Switch
Loudness & Mute Control
Compact Disc Player
Detachable Face for Anti-Theft
10 CD-changer control(Option)
Telephone Mute Control
5010Series
CDP-0105A
ACP-5010RDS
ACP-5010RC
ACP-5010C
ACP-5010
AKP-5010RDS
0106Series
ACP-0106A

1. PRODUCT SPECIFICATIONS ..................................................1
2. LINE DRAWING ........................................................................2
3. EMERGENCY TROUBLE SHOOT ............................................3
4. ADJUSTMENTS ........................................................................6
5. SCHEMATIC DIAGRAM ..........................................................11
6. PARTS LOCATION ON P.C.BOARD ......................................12
7. OVERALL EXPLODED VIEW & PARTS LIST .......................15
8. DECK MECHANISM EXPLODED VIEW & PARTS LIST .......16
9. ELECTRICAL PARTS LIST........................................................19
10. FUNCTION OF MICOM IC .....................................................23
11. IC BLOCK DIAGRAM .............................................................29
12. LIQUID CRYSTAL DISPLAY ..................................................33
13. OUTPUT CONNECTION DESCRIPTIONS ............................34
TABLE OF CONTENTS

1
1. PRODUCT SPECIFICATIONS
AUDIO SECTION
Maximum output power : 40watts per channel into 4 ohms.
Load impedance : 4 ohms or 8 ohms
Total harmonic distortion : Less than 10% at 14 watts
Frequency response : 100Hz( 3dB), 20kHz( 3dB)
Control Bass/Treble : 10 3dB at 100Hz/10kHz
CD PLAYER SECTION
Total harmonic distortion : 0.1%
Signal to noise ratio : 80dB
Laser Diode Properties : Meterial - GaAlAs
Wave length - 775~800 nm
Laser out-put Power - Less than 400 uW
TUNER SECTION
(FM) Tuning range : 87.5 to 108MHz
Sensitivity : 10dBuV
Stereo separation : 30dB
Signal to noise ratio
: 60dB
(MW) Tuning range : 522 to 1620KHz at Europe
( 530 to 1710kHz at U.S.A)
Sensitivity : 22dBuV
Signal to noise ratio
: 50dB
Channel space : 9KHz (or 10KHz at U.S.A)
(LW) Tuning range : 144 to 288KHz
Usable Sensitivity : 25dBuV
GENERAL
Power requirements : DC 13.8V (10.8 ~15.6V allowable)
Negative ground
Speaker impedance : 4 or 8 ohm
Output power : Maximum 40Wx4Ch.
Current consumption : 10A (MAX)
Dimension (W x H x D) : 178 x 50 x 156 mm
Chassis size : 195 x64 x14.6 mm
Weight(Net) : 1.75Kg
Design and specifications are subject to changes for improvements without notice.

2
2. LINE DRAWING
2-1. FRONT SIDE
2-2. REAR SIDE
ACP-0108RDS Serise
- RDS Function
- Compact Disc Player
- 4-Channel high Power (40W x 4Ch)
- Electronic Tuning
- Electronic Volume /Bass /Treble /Balance
/Fader Control
- 42 Memory Capability (18FM+12MW+12LW)
- Local/DX Switch
- Loudness & Mute Control
- Detachable Face for Anti-Theft
- 10 CD-changer control(Option)
- Telephone Mute Control
ACP-0108 BASIC Series
- Basic Function
- Compact Disc Player
- 4-Channel high Power (40W x 4Ch)
- Electronic Tuning
- Electronic Volume /Bass /Treble /Balance
/Fader Control
- 42 Memory Capability (18FM+12MW+12LW)
- Local/DX Switch
- Loudness & Mute Control
- Detachable Face for Anti-Theft
- 10 CD-changer control(Option)
- Telephone Mute Control
*ACP-5010RDS, 5010RC *AKP-5010RDS
*ACP-5010C, 5010 *CDP-0105A
*ACP-0106A

3
3. EMERGENCY TROUBLE SHOOT
3-1. General Function
No sound from
speakers
Yes
No
Yes
Output connector
is missing
Output connector
is inferior goods
Put exactly output
connector in.
Change output
connector to
superior goods
Yes
No
Power IC, Output
Socket is inferior
goods
Change Power IC,
Output Socket to
superior goods
Yes
A
A
L.C.D or Lamp
is not turned
off.
Yes
No
Yes
Power is not
supplied Return to
Output voltage of
power IC is little.
Change Regulator
IC and check
output voltage.
Yes
No
LCD or Lamp is
inferior goods.
Change LCD or
Lamp to superior
goods.
Yes
Different each
channel have
output level
(Front, Rear,
Left, Right)
Treble or Bass
is low
unusually
Yes
No
Yes
Balance of front
and rear is in one
side
Balance of Left,
Right is in one
side.
Re-adjust Balance
of front, rear
Ref.
Balance = Center
Front / Rear
Ref.
Balance = Center
Left / Right
Ref.
Balance = Center
Treble / Bass
Ref.
Regulator IC output
Voltage = V
Ref.
Electrical Parts List
L.C.D., Lamp
Re-adjust Balance
of Left, Right
Yes
Yes
Balance of Treble
or Bass is in one
side.
Re-adjust Balance
of Treble or Bass
Yes

4
EMERGENCY TROUBLE SHOOT
3-2. Tuner Function
Hearing noise
only
Yes
No
Yes
No selected the
station
Tuner Module is
inferior goods.
Select exactly
broadcasting
frequency.
Change tuner
module to
superior goods.
Yes
Weak frequency
area caused by
elevations
Change to goods of
R.D.S function.
Yes
A
B
A
Station in
other regions
are not held.
Yes Yes
No selected the
local stations. Return to or
Extreme noise
in broadcast
Weak
separation of
FM stereo
Yes
No
Yes
Antenna
connector is
missing
Put exactly
antenna connector
in his jack
Ref.
CAT-7
Adjustments/Tuner
Function of auto-
switch noise
reduction
Ref.
Yes
Weak frequency
area of FM, MW
Switch
automatically to
mono mode in
weak frequency
area
Yes
B
R1 In case of located Glass Antenna, check if heat wire is cut or not in rear window.
R2 Check Antenna connector part.

EMERGENCY TROUBLE SHOOT
5
Disc is not
inserted.
Yes Yes
There is Disc in
the slot
Take out Disc
from the slot
Disc is inferior
goods
Use only superior
disc
No
Yes
A
Selection time
is longer than
unusually
Yes
Selected PAUSE
function
Release PAUSE
function
Yes
Selected MUTE
function
Release MUTE
function
Yes
Mechanism is
inferior goods
Change
Mechanism to
superior goods
Turn power on
again after turn off.
Yes
Inspect disc for
scratches.
Yes
No sound Yes
No
Yes
disc was inserted
upside down
Insert CD with
label side down
Ref.
DWEC CD Mecha
DCM-400F
Ref.
Power Off/On
Hard Reset
No
No
No
Disc is dirty
Wipe with cleaning
cloth
Yes
A
Ref. Point
Disc is stopped
under eject Yes
It is normal for
CD-Deck or the
slot
Yes
3-3. CD Function

4. ADJUSTMENTS
6
4-1. TUNER MODULE ADJUSTMENT LOCATIONS
CAT-7 (3 Band)
CAT-6 (2 Band)

ADJUSTMENTS
4-2. MW / LW ADJUSTMENT METHOD
7
STEP
MW
LW
Band Covering
Range
IF
522 KHz
522 KHz
603 KHz
V.T point of
AM Board
Output
Output
522 KHz
450 KHz
603 KHz
AMOSC
MAXIMUM
1620 KHz
1620 KHz - 7.6V
MAXIMUM
MAXIMUM
AMIF
AMRF1
AMRF2
1404 KHz
Output 1404 KHz
MAXIMUM
AMRF1
AMRF2
TRACKING
ALIGNMENT TUNING
TEST
POSITION
SSG
FREQUENCY
ALIGNMENT INDICATOR
Band Covering
Range 144 KHz 144 KHz
LWOSC MAXIMUM
TRACKING 220 KHz Output 220 KHz LWRF1
LWRF2
MAXIMUM
-

ADJUSTMENTS
4-3. FM ADJUSTMENT METHOD
8
STEP
1 IF adjust
MPX IC
Separation
Control
98.1 MHz, ANT
input 60dBu, 1kHz
(30% MOD) FM
SSG
ANT jack
and GND
ANT jack
and GND
98.1 MHz, ANT
input 40dBu, 1kHz
(L+R=45%
L-R=45%
PILOT=10% MOD)
The voltage
between CW03
L or R CH SP.
output wire
VTVM and Scope
FM DET
ST
BLEND
Adjust for 0V
0.05V
L, R separation
8dB
2
SUBJECT
FEED SIGNAL
FROM TO MEASURE
OUTPUT ADJUST POINT
ADJUSTMENT